2172150189 has 40 divisors (see below), whose sum is σ = 3555332352. Its totient is φ = 1310679360.

The previous prime is 2172150187. The next prime is 2172150223. The reversal of 2172150189 is 9810512712.

It is a happy number.

2172150189 is a `hidden beast` number, since 2 + 1 + 72 + 1 + 501 + 89 = 666.

It is not a de Polignac number, because 2172150189 - 2¹ = 2172150187 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172150181) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 202372 + ... + 212834.

Almost surely, 2^2172150189 is an apocalyptic number.

It is an amenable number.

2172150189 is a deficient number, since it is larger than the sum of its proper divisors (1383182163).

2172150189 is a wasteful number, since it uses less digits than its factorization.

2172150189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719 (or 10710 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 2172150189 is about 46606.3320697950. The cubic root of 2172150189 is about 1295.0800602452.

The spelling of 2172150189 in words is "two billion, one hundred seventy-two million, one hundred fifty thousand, one hundred eighty-nine".